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16 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Foundry |
A factory equipped to handle metal in molten form and where casting are produced |
An equipped factory |
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Mold |
A cavity, sometimes consisting of two sides, that (neglecting shrinkage) determines the size and shape of a part |
A cavity, sometimes having 2 sides |
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Pattern |
A full sized model of the part, enlarged to account for shrinkage and machining allowances, used in sand mold casting |
A full sized model of the part, used in sand mold casting |
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Lost-foam process |
This casting process uses a mold of sand packed around a pattern that vaporizes when a molten metal is poured into the mold |
Pattern vaporizes in casting process |
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Die casting |
This permanent mold process injects molten metal into the mold cavity at high pressure |
Permanant mold process, injects molten metal |
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Silica |
This is the principal starting material in glassworking |
Starting material |
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Extrusion |
This fundamental shaping process (used for metals, ceramics, and polymers) uses compression to force material through a die orifice, resulting in a long continuous product whose cross-sectional shape is determined by the die orifice |
Fundamental shaping process! |
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Calendaring |
This process is used to produce sheet and thin film stock out of rubber or rubbery thermoplastics |
Process used to produce sheet and thin film stock |
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Injection molding |
A process where a polymer, in a highly plastic state, is forced to flow into a mold cavity, where it solidifies |
YOU KNOW THIS! Just reread it girl and THINK. |
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Parison |
The starting tube of molten plastic used in blow molding |
The starting tube |
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Rotational molding or rotomolding |
This process uses gravity and a rotating mold to produce large hollow parts from polymers |
ROTATING MOLD TO PRODUCE LARGE HOLLOW PARTS |
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Thermoforming |
A process in which flat thermoplastic sheet is heated and deformed into the desired shaped |
THERMOPLASTIC sheet is heated and deformed into DESIRED SHAPE. |
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Vulcanization |
The cross-linking of the polymer molecules in rubber |
Cross-linking.. |
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Carbon black |
This is the most important reinforcing filler in rubber because it increases tensile strength and resistance to abrasion |
Most important reinforcing FILLER |
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Differences between expendable molds and permanant molds |
Expendable molds are made from sand, plastic, ceramics, and are destroyed after one use. Permanant molds are made with expensive permanent materials and are made to be used numerous times |
Just think |
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Difference between thermoplastics and thermosets |
Thermoplastics can be remelted whereas, thermosets will always remain in a permanent solid state |
THERMOPLASTIC... thermoSET |
